CN101621850B - Message transmitting method and user terminal apparatus - Google Patents
Message transmitting method and user terminal apparatus Download PDFInfo
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- CN101621850B CN101621850B CN200910091266.0A CN200910091266A CN101621850B CN 101621850 B CN101621850 B CN 101621850B CN 200910091266 A CN200910091266 A CN 200910091266A CN 101621850 B CN101621850 B CN 101621850B
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Abstract
The invention discloses a message transmitting method, which comprises the following steps: studying a response message transmission speed of a receiving apparatus by a user terminal apparatus; when transmitting a data message to the receiving apparatus by the user terminal apparatus, calculating the end time of transmitting the data message according to the transmission speed of the data message and the studied response message transmission speed, filling the end time of transmitting behind a continuous time field of the data message, and transmitting the data message according to the transmission speed of the data message. The invention further discloses a user terminal apparatus. The technical scheme of the invention improves the utilization rate of a radio signal channel and reduces the null conflict.
Description
Technical field
The present invention relates to wireless communication technology field, refer to a kind of file transmitting method and a kind of client device especially.
Background technology
Use the management by methods channel resource of carrier sense multiple access/collision detection (CSMA/CD, Carrier Sense Multiple Access/Collision Detection) in IEEE 802.11 agreements.(STA Station) only could send message to each client when channel idle.
Be directed against the not busy judgement of channel busy in the CSMA/CD agreement and used the technology of carrier sense (CS, Carrier Sense).The carrier sense technological synthesis has used virtual carrier sensing in wireless network communication (Virtual CS) and physical carrier to intercept (Physical CS) mode; When the result who promptly has only virtual carrier sensing in wireless network communication and physical carrier to intercept is idle; The carrier sense result just is a channel idle; At this moment, STA can get into the flow process of keeping out of the way competitive channel; If the arbitrary result during virtual carrier sensing in wireless network communication and physical carrier are intercepted is taking for channel, then carrier sense result is a channel occupancy, and at this moment, STA needs to wait for, can not send message.
Physical carrier is intercepted the situation that takies by hardware detection physical channel carrier wave.Virtual carrier sensing in wireless network communication is realized through maintaining network allocation vector (NAV, Network Allocation Vector) by medium access control (MAC) layer.Like NAV is that " 0 " then virtual intercepted result is the free time, otherwise virtual intercepted result is a channel occupancy.And being STA, NAV comes updating maintenance through the message that parsing receives.Comprised duration (duration) field in the form of IEEE802.11 message, this duration field is represented the total time of this newspaper literary composition transmission, the i.e. summation in the transmission time of the stand-by period of the transmission time of this message, back message using and response.After STA receives a normal message; If the value of the duration field in the message is greater than NAV; Then be updated to NAV the value of the duration that receives, and timer of STA side maintenance, it is 0 that the time point that this timer is responsible for writing down at NAV is provided with NAV when arriving.The value T of the duration field in IEEE 802.11 messages
DurationAccount form following:
T
duration＝T
data+T
sifs+T
ack
Wherein, T
DataBe the transmission time of data message, T
SifsBe the fixedly stand-by period of back message using, T
AckIt is the transmission time of back message using (below be also referred to as the ACK message).Fig. 1 is T of the prior art
DurationAnd concern sketch map between each relevant parameter.
T
Data, T
Sifs, T
AckThe computational methods agreement in definition is all arranged, T wherein
DataAnd T
AckBe to calculate T according to fixing computational methods
SifsIt is fixed value.Computational methods may be different under different patterns for above-mentioned several values, T in 802.11a
DataAnd T
AckThe PLME-TXTIME.confirmd algorithm computation of use agreement regulation, promptly the transmission time TXTIME of a message (sending message or back message using) calculates by following formula:
TXTIME＝T
PREAMBLE+T
SIFNAL+TSYN×Ceiling((16+8×LENGTH+6)/N
DBPS)
In above-mentioned formula, remove N
DBPSParameter in addition is fixed value, and N
DBPSCorresponding one by one with message transmissions speed, therefore for a message, message transmissions speed has determined the transmission time of message.As long as promptly know the transmission rate of message, just can calculate the transmission time of message.
For the STA of the literary composition that sends datagram, it knows the speed of self sending message, therefore can calculate T
Data, and T
SifsBe fixed value, therefore, have only T
AckCalculating difficult.The response speed of regulation ACK message should use basic rate to concentrate the flank speed that is not higher than data message speed in the IEEE802.11 agreement.
Though IEEE 802.11 agreements have been stipulated the employed speed of ACK message transmissions; But control message;, the transmission rate of ACK message realizes as selecting by chip; And the basic rate collection can arbitrarily be changed by base server (BSS) software control, and a lot of chips fail to realize fully the regulation of agreement.Be that STA can only respond AKC speed with fixed correspondence,, all respond the ACK message, and can not change the transmission rate of its ACK message according to the variation of rate set in the BSS with the fixed rate of correspondence promptly for the message that is received with certain fixed-rate transmission.
The message transmissions total time T that stipulates in the agreement is mentioned in the front
DurationCalculate and insert in the duration field of the message that sends by message transmitting party STA.Other STA in the channel realize virtual carrier sensing in wireless network communication through the duration field of analytic message.But, message transmissions total time T
DurationCalculating in, message transmitting party can calculate T exactly
DataAnd T
SifsBut, T
AckTransmission rate by the ACK message determines, and the transmission rate of ACK message can't be learnt at transmit leg, so transmit leg can't accurately dope the transmission rate of ACK message and accurately calculate the transmission time T of ACK message
AckThereby, influence the machine-processed correctness of CS.Below be that example describes with Fig. 2,3 and 4.
Fig. 2 is correct calculation T of the prior art
DurationThe time the CS schematic diagram of mechanism.As shown in Figure 2, comprised the duration field, value T wherein in the message that STA A sends
DurationIndicated the time of whole message transmissions end exactly, promptly indicated the deadline of the ACK message transmissions of SAT B exactly, STA C just can come the virtual busy not busy situation of maintenance channel exactly through NAV like this.
Fig. 3 is T of the prior art
DurationFirst kind of situation sketch map of the CS mechanism during calculation deviation.As shown in Figure 3, the ACK message transfer time T of STA A prediction
AckLong, when just the speed of the employed speed ratio STA of STA B response AKC message A prediction wants high, therefore, the T that STA A calculates
DurationLong, cause the NAV time of STA C also long, make STA C after STA B has transmitted the ACK message, to detect the pseudo channel free time, thereby cause the channel time waste at once.
Fig. 4 is T of the prior art
DurationSecond kind of situation sketch map of the CS mechanism during calculation deviation.As shown in Figure 4, the ACK message transfer time T of STA A prediction
AckToo short, just the speed of the employed speed ratio STA of STA B response AKC message A prediction is low.At this moment, the T of STA A calculating
DurationToo short, cause the NAV time of STA C also too short, make STA C when STA B has not transmitted the ACK message, detected the pseudo channel free time, if STA B and STA C concealed nodes (being that physical carrier is intercepted also to idle) each other then can produce conflict.
In sum, STA of the prior art can't accurately predict the transmission rate of back message using, causes the wireless channel time waste or eats dishes without rice or wine to produce conflict.
Summary of the invention
The present invention mainly provides a kind of file transmitting method, and this method has promoted the utilance of wireless channel, has reduced null conflict.
The present invention also provides a kind of client device, and this client device has promoted the utilance of wireless channel, has reduced null conflict.
For achieving the above object, technical scheme of the present invention specifically is achieved in that
The invention discloses a kind of file transmitting method, this method comprises:
The different back message using transmission rates corresponding to the different transmission rates data message of client device study receiver equipment;
When client device when receiver equipment sends datagram literary composition; According to the transmission rate of this data message and the back message using transmission rate of being learnt; Calculate the transmission end time of said data message; After said transmission end time being filled up to the duration field of said data message, send said data message with the transmission rate of this data message
Wherein, the different back message using transmission rates corresponding to the different transmission rates data message of said client device study receiver equipment comprise:
Client device is set up corresponding information list respectively for each receiver equipment, preserves the transmission rate of the data message that client device sends in the information list, and the corresponding relation between the back message using transmission rate returned of corresponding receiver equipment; When initial, client device is filled in different data message transmission rates in information list, and in information list, fills in the pairing back message using transmission rate of each data message transmission rate according to preset strategy;
When client device first with data designated message transmissions speed when receiver equipment sends datagram literary composition; Search the information list corresponding according to this data designated message transmissions speed with receiver equipment; Obtain corresponding back message using transmission rate; Calculate the transmission end time of data message then according to the back message using transmission rate that is obtained and said data designated message transmissions speedometer; After said transmission end time being filled up to the duration field of data message, with said data designated message transmissions rate sending data message;
Client device receive that receiver equipment returns back message using the time; Resolve the back message using transmission rate, and use in the back message using transmission rate lastest imformation tabulation of being resolved with the corresponding back message using transmission rate of said data designated message transmissions speed.
The invention also discloses a kind of client device, this client device comprises: study module, selection module, computing module and message sending module, wherein,
Study module is used to learn the different back message using transmission rates corresponding to the different transmission rates data message of receiver equipment, and preserves;
The rate selection module is used at said client device when receiver equipment sends datagram literary composition, selects the data message transmission rate, and selected data message transmission rate is sent to computing module;
Computing module; Be used for obtaining the back message using transmission rate from study module; And according to data message transmission rate that is received and the back message using transmission rate of being obtained; Calculate the transmission end time of said data message, said transmission end time is filled up to the duration field of said data message after, said data message and the data message transmission rate that received are sent to the message sending module;
The message sending module is used for sending the data message that is received with the data message transmission rate that is received,
Said study module comprises: sub module stored, safeguard that submodule and message receive submodule, wherein,
Sub module stored is used to preserve corresponding with different receiver equipments respectively information list; Preserve the transmission rate of the data message that client device sends in the information list, and the corresponding relation between the back message using transmission rate returned of corresponding receiver equipment;
Safeguard submodule, when initial, be used for filling in different data message transmission rates, and in information list, fill in the pairing back message using transmission rate of each data message transmission rate according to preset strategy at information list;
Said computing module; When client device first with data designated message transmissions speed when receiver equipment sends datagram literary composition; Be used for searching the information list corresponding with receiver equipment according to this data designated message transmissions speed; Obtain corresponding back message using transmission rate; Calculate the transmission end time of data message then according to the back message using transmission rate that is obtained and said data designated message transmissions speedometer, said transmission end time is filled up to the duration field of data message after, data message and the data message transmission rate that is received are sent to the message sending module;
Said message sending module is used for sending the data message that is received with the data message transmission rate that is received;
Message receives submodule, be used for receive that receiver equipment returns back message using the time, resolve the back message using transmission rate, and report and safeguard submodule;
Safeguard submodule, be used for receiving the back message using transmission rate that submodule reports with message, in the lastest imformation tabulation, with the corresponding back message using transmission rate of said data designated message transmissions speed.
Visible by technique scheme, this back message using transmission rate of learning receiver equipment as the client device of transmit leg of the present invention; When client device when receiver equipment sends datagram literary composition; According to the transmission rate of this data message and the back message using transmission rate of being learnt; Calculate the transmission end time of said data message; After said transmission end time being filled up to the duration field of said data message, with the technical scheme that the transmission rate of this data message is sent said data message, feasible client device as transmit leg can calculate the transmission end time of the literary composition that sends datagram exactly; Guarantee the correctness of CS mechanism, avoided the situation of wireless channel waste of time and null conflict.
Description of drawings
Fig. 1 is T of the prior art
DurationAnd concern sketch map between each relevant parameter;
Fig. 2 is correct calculation T of the prior art
DurationThe time the CS schematic diagram of mechanism;
Fig. 3 is T of the prior art
DurationFirst kind of situation sketch map of the CS mechanism during calculation deviation;
Fig. 4 is T of the prior art
DurationSecond kind of situation sketch map of the CS mechanism during calculation deviation;
Fig. 5 is the flow chart of a kind of file transmitting method of the embodiment of the invention;
Fig. 6 is that first embodiment of a kind of client device of the present invention forms structured flowchart;
Fig. 7 is that second embodiment of a kind of client device of the present invention forms structured flowchart.
Embodiment
Core concept of the present invention is: client device is no longer predicted the back message using transmission rate of receiver equipment, but the back message using transmission rate of study receiver equipment; When client device when receiver equipment sends datagram literary composition; According to the transmission rate of this data message and the back message using transmission rate of being learnt; Calculate the transmission end time of said data message; After said transmission end time being filled up to the duration field of said data message, send said data message with the transmission rate of this data message.
To the actual conditions that client device sends back message using for different data message transmission rates with different speed, in embodiments of the present invention: client device is learnt the different back message using transmission rates corresponding to the different transmission rates data message of receiver equipment; When client device when receiver equipment sends datagram literary composition, according to the transmission rate of this data message and the back message using transmission rate of being learnt, calculate the transmission end time of said data message corresponding to this data message.
Provide the scheme of the back message using transmission rate of two kinds of client device study receiver equipments in the embodiment of the invention.
Scheme one
Client device sends inquiry message to receiver equipment, carries data designated message transmissions speed in this inquiry message; Client device receives the notice message from receiver equipment, carries in this notice message and the corresponding back message using transmission rate of said data designated message transmissions speed; Client device is corresponding to be preserved the data message transmission rate of carrying in the inquiry message and notifies the back message using transmission rate of carrying in the message.
Client device can be carried out above-mentioned inquiry process when needs send datagram literary composition with assigned rate, obtain corresponding back message using transmission rate.Perhaps, client device also can be carried out repeatedly above-mentioned inquiry process in advance, and the back message using transmission rate that obtains under the different pieces of information message transmissions speed is also preserved, and when waiting to need to use, directly inquires about the data of being preserved and gets final product.
Scheme two
In this programme; Based on receiver equipment each is received the characteristic that the speed of data message is responded with fixed rate; The transmission rate of the back message using that transmit leg equipment collection receiver equipment returns; And the transmission rate of these back message usings is recorded as empirical value, next time when receiver equipment sends datagram literary composition, adopt empirical value to calculate the transmission end time of the data message that is sent.Specifically as shown in Figure 5.
Fig. 5 is the flow chart of a kind of file transmitting method of the embodiment of the invention.As shown in Figure 5, this method comprises:
This step, though for a client device, it is for the data message with certain fixed-rate transmission that is received; All respond the ACK message with fixed rate, still, for different client side equipment; They are for the data message with identical speed rates; The transmission rate of the ACK message of being responded maybe be also inequality, therefore, is directed against the information list that each client device is all set up a correspondence among the present invention.For certain receiver equipment, its corresponding information list can be as shown in table 1:
| The data message transmission rate | The back message using transmission rate |
| 1 | 1 |
| 2 | 1 |
| 5.5 | 1 |
| 11 | 1 |
| 6 | 6 |
| 9 | 6 |
| 12 | 6 |
| 18 | 6 |
| 24 | 6 |
| 36 | 24 |
| 48 | 24 |
| 54 | 24 |
Table 1
This step owing to also do not collect the back message using transmission rate of receiver equipment when initial, therefore, has client device to compose initial value according to certain strategy for the back message using transmission rate in the information list.Preferably; For each the data message transmission rate in the information list; It is the minimum transmission rate under the client device work at present pattern that its corresponding back message using transmission rate is set; Though be the concentrated such waste that may cause channel of minimum value of basic rate of client device place base server collection BSS, when avoiding producing null conflict.
Step 502; When client device when receiver equipment sends datagram literary composition; Select the data message transmission rate earlier; Search the information list corresponding according to selected data message transmission rate, obtain corresponding back message using transmission rate, calculate the transmission end time of said data message then according to the back message using transmission rate that is obtained and selected data message transmission rate with receiver equipment; After said transmission end time being filled up to the duration field of said data message, send said data message with selected data message transmission rate.
In the described method of Fig. 5; Each back message using transmission rate in the pairing information list of certain receiver equipment; After the back message using that all returns according to this receiver equipment upgraded once, client device can stop to safeguard the information list that this receiver equipment is corresponding, when promptly client device receives the back message using that this receiver equipment returns again; No longer carry out the transmission rate of resolving back message using, and the step of the corresponding back message using transmission rate in the lastest imformation tabulation.This is because for a receiver equipment; It is for the data message with certain fixed-rate transmission that is received; All respond the ACK message with fixed rate; Therefore for each the data message transmission rate in the information list, its corresponding back message using transmission rate only need be updated once and get final product.This method is the burden of mitigation system greatly.
Next provide the composition structure of the client device in the embodiment of the invention.
Fig. 6 is that first embodiment of a kind of client device of the present invention forms structured flowchart.As shown in Figure 6, this client device comprises: study module 601, rate selection module 602, computing module 603 and message sending module 604, wherein:
In Fig. 6, said study module 601 is used to learn the different back message using transmission rates corresponding to the different transmission rates data message of receiver equipment, and preserves; Said computing module 604 is used for obtaining the back message using transmission rate corresponding to institute's receiving data packets transmission rate from study module.
In Fig. 6, said study module 601 comprises: consult submodule 605 and sub module stored 606;
Said negotiation submodule 605 is used for sending inquiry message to receiver equipment, carries data designated message transmissions speed in this inquiry message; Be used to receive notice message, carry in this notice message and the corresponding back message using transmission rate of said data designated message transmissions speed from receiver equipment; Be used for the data message transmission rate that inquiry message is carried and notify the back message using transmission rate correspondence of carrying in the message to be saved in the sub module stored 606.
Fig. 7 is that second embodiment of a kind of client device of the present invention forms structured flowchart.As shown in Figure 7, this client device comprises: study module 701, rate selection module 702, computing module 703 and message sending module 704, wherein:
In Fig. 7, said study module 701 is used to learn the different back message using transmission rates corresponding to the different transmission rates data message of receiver equipment, and preserves.Said computing module 703 is used for obtaining the back message using transmission rate corresponding to institute's receiving data packets transmission rate from study module.
As shown in Figure 7, said study module 701 comprises: sub module stored 705, safeguard that submodule 706 and message receive submodule 707, wherein:
Sub module stored 705 is used to preserve corresponding with different receiver equipments respectively information list; Preserve the transmission rate of the data message that client device sends in the information list, and the corresponding relation between the transmission rate of the back message using that returns of corresponding receiver equipment;
Said computing module 703; When client device first with specific data message transmissions speed when receiver equipment sends datagram literary composition; Be used for searching the information list corresponding with receiver equipment according to this specific data message transmissions speed; Obtain corresponding back message using transmission rate; Calculate the transmission end time of said data message then according to the back message using transmission rate that is obtained and said specific data message transmissions speedometer, said transmission end time is filled up to the duration field of data message after, data message and the data message transmission rate that is received are sent to message sending module 704;
Said message sending module 704 is used for sending the data message that is received with the data message transmission rate that is received;
Message receives submodule 707, be used for receive that receiver equipment returns back message using the time, resolve the transmission rate of back message using, and report and safeguard submodule 706;
In Fig. 7, the said submodule 706 of safeguarding, when initial, for each the data message transmission rate in the information list, it is the concentrated minimum value of basic rate of client device place BSS that its corresponding back message using transmission rate is set.
In Fig. 7; The said submodule 706 of safeguarding; When for each the back message using transmission rate in the information list; After the back message using that all returns according to corresponding receiver equipment upgraded once, be further used for receiving submodule 707 and send the notice that stops to resolve the back message using that corresponding receiver equipment returns to message;
Message receives submodule 707, be further used for receive safeguard the notice that submodule 706 sends after, when receiving the back message using that corresponding receiver equipment returns, no longer carry out the transmission rate of resolving back message using, and report the step of safeguarding submodule 706.
In sum; This client device as transmit leg of the present invention is collected the transmission rate of the back message using that the recipient returns; And the transmission rate of these back message usings is recorded as empirical value; Next time when receiver equipment sends datagram literary composition, adopt empirical value to calculate the technical scheme of the transmission end time of the data message that is sent, make client device as transmit leg can calculate institute's civilian transmission end time that sends datagram comparatively exactly; Guarantee the correctness of CS mechanism, avoided the situation of wireless channel waste of time and null conflict.
The above is merely preferred embodiment of the present invention, is not to be used to limit protection scope of the present invention, all any modifications of within spirit of the present invention and principle, being made, is equal to replacement, improvement etc., all should be included within protection scope of the present invention.
Claims (8)
1. a file transmitting method is characterized in that, this method comprises:
The different back message using transmission rates corresponding to the different transmission rates data message of client device study receiver equipment;
When client device when receiver equipment sends datagram literary composition; According to the transmission rate of this data message and the back message using transmission rate of being learnt; Calculate the transmission end time of said data message; After said transmission end time being filled up to the duration field of said data message, send said data message with the transmission rate of this data message
Wherein, the different back message using transmission rates corresponding to the different transmission rates data message of said client device study receiver equipment comprise:
Client device is set up corresponding information list respectively for each receiver equipment, preserves the transmission rate of the data message that client device sends in the information list, and the corresponding relation between the back message using transmission rate returned of corresponding receiver equipment; When initial, client device is filled in different data message transmission rates in information list, and in information list, fills in the pairing back message using transmission rate of each data message transmission rate according to preset strategy;
When client device first with data designated message transmissions speed when receiver equipment sends datagram literary composition; Search the information list corresponding according to this data designated message transmissions speed with receiver equipment; Obtain corresponding back message using transmission rate; Calculate the transmission end time of data message then according to the back message using transmission rate that is obtained and said data designated message transmissions speedometer; After said transmission end time being filled up to the duration field of data message, with said data designated message transmissions rate sending data message;
Client device receive that receiver equipment returns back message using the time; Resolve the back message using transmission rate, and use in the back message using transmission rate lastest imformation tabulation of being resolved with the corresponding back message using transmission rate of said data designated message transmissions speed.
2. the method for claim 1 is characterized in that,
Said according to the transmission rate of this data message and the back message using transmission rate of being learnt; The transmission end time that calculates said data message comprises: according to the transmission rate of this data message and the back message using transmission rate of being learnt corresponding to this data message, calculate the transmission end time of said data message.
3. the method for claim 1 is characterized in that, saidly in information list, fills in the pairing back message using transmission rate of each data message transmission rate according to preset strategy and comprises:
For each the data message transmission rate in the information list, it is the concentrated minimum value of basic rate of client device place base server collection BSS that its corresponding back message using transmission rate is set.
4. the method for claim 1; It is characterized in that; This method further comprises: after back message using that each the back message using transmission rate in the pairing information list of receiver equipment is all returned according to this receiver equipment upgraded once; This method further comprises: when client device receives the back message using that this receiver equipment returns, no longer carry out the step of resolving the corresponding back message using transmission rate in back message using transmission rate and the lastest imformation tabulation.
5. a client device is characterized in that, this client device comprises: study module, rate selection module, computing module and message sending module, wherein,
Study module is used to learn the different back message using transmission rates corresponding to the different transmission rates data message of receiver equipment, and preserves;
The rate selection module is used at said client device when receiver equipment sends datagram literary composition, selects the data message transmission rate, and selected data message transmission rate is sent to computing module;
Computing module; Be used for obtaining the back message using transmission rate from study module; And according to data message transmission rate that is received and the back message using transmission rate of being obtained; Calculate the transmission end time of said data message, said transmission end time is filled up to the duration field of said data message after, said data message and the data message transmission rate that received are sent to the message sending module;
The message sending module is used for sending the data message that is received with the data message transmission rate that is received,
Said study module comprises: sub module stored, safeguard that submodule and message receive submodule, wherein,
Sub module stored is used to preserve corresponding with different receiver equipments respectively information list; Preserve the transmission rate of the data message that client device sends in the information list, and the corresponding relation between the back message using transmission rate returned of corresponding receiver equipment;
Safeguard submodule, when initial, be used for filling in different data message transmission rates, and in information list, fill in the pairing back message using transmission rate of each data message transmission rate according to preset strategy at information list;
Said computing module; When client device first with data designated message transmissions speed when receiver equipment sends datagram literary composition; Be used for searching the information list corresponding with receiver equipment according to this data designated message transmissions speed; Obtain corresponding back message using transmission rate; Calculate the transmission end time of data message then according to the back message using transmission rate that is obtained and said data designated message transmissions speedometer, said transmission end time is filled up to the duration field of data message after, data message and the data message transmission rate that is received are sent to the message sending module;
Said message sending module is used for sending the data message that is received with the data message transmission rate that is received;
Message receives submodule, be used for receive that receiver equipment returns back message using the time, resolve the back message using transmission rate, and report and safeguard submodule;
Safeguard submodule, be used for receiving the back message using transmission rate that submodule reports with message, in the lastest imformation tabulation, with the corresponding back message using transmission rate of said data designated message transmissions speed.
6. client device as claimed in claim 5 is characterized in that,
Said computing module is used for obtaining the back message using transmission rate corresponding to institute's receiving data packets transmission rate from study module.
7. client device as claimed in claim 5 is characterized in that,
The said submodule of safeguarding, when initial, for each the data message transmission rate in the information list, it is the concentrated minimum value of basic rate of client device place BSS that its corresponding back message using transmission rate is set.
8. client device as claimed in claim 5 is characterized in that,
The said submodule of safeguarding; After the back message using that all returns according to corresponding receiver equipment for each the back message using transmission rate in the information list upgraded once, be further used for receiving submodule and send the notice that stops to resolve the back message using that corresponding receiver equipment returns to message;
Message receives submodule, be further used for receive safeguard the notice that submodule sends after, when receiving the back message using that corresponding receiver equipment returns, no longer carry out and resolve the back message using transmission rate and report the step of safeguarding submodule.
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101032156A (en) * | 2004-09-30 | 2007-09-05 | 摩托罗拉公司 | Method for the selection of forward error correction (fec)/ constellation pairings for digital transmitted segments based on learning radio link adaptation (rla) |
| CN101374112A (en) * | 2008-10-28 | 2009-02-25 | 华为技术有限公司 | Method, system and apparatus for transmitting packet |
| CN101459607A (en) * | 2008-12-31 | 2009-06-17 | 华为技术有限公司 | Packet transmitting method and router |
-
2009
- 2009-08-14 CN CN200910091266.0A patent/CN101621850B/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101032156A (en) * | 2004-09-30 | 2007-09-05 | 摩托罗拉公司 | Method for the selection of forward error correction (fec)/ constellation pairings for digital transmitted segments based on learning radio link adaptation (rla) |
| CN101374112A (en) * | 2008-10-28 | 2009-02-25 | 华为技术有限公司 | Method, system and apparatus for transmitting packet |
| CN101459607A (en) * | 2008-12-31 | 2009-06-17 | 华为技术有限公司 | Packet transmitting method and router |
Non-Patent Citations (1)
| Title |
|---|
| The Institute of Electrical and Electronics Engineers, Inc..IEEE Standard for Information technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements Part 11: Wireless LAN Medium Access Control (MAC) and Physical Layer (PHY) Specifications.《IEEE Std 802.11-2007》.2007,59-87,258,280-282,488,592-594,597-598,625. * |
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